i want to get the model that has the best chances not to have coil whine because the forum is flooded with reports on the problem.

the X-650KM3 cost exactly the same as the Platinum-660 here, the Platinum has 7 years warranty where as the X-650 has 5 years, but it seams (from other threads) that the Platinum is the best candidate for whining so maybe i should go with the X-650 instead?

and there's the X-560 which people report that is less prone to the coil whine problem although it's from the second generation and the X-650 is the third generation...

what should i do??

on a side note- i am currently using Corsair HX620 that is about to die (3.3V keeps getting below 3V) and the cables that came with it weren't long enough to route conveniently in my Antec P280. does the Seasonic models mentioned here will suffice in that regard?my MB is Intel dz77re-75k.

Welcome to SPCR. "Flooded" might be an over-reaction. "A handful" might be more appropriate. Take a look at the customer reviews at large e-tailers like Newegg and Amazon and you won't see much (if at all) in the way of noise complaints. Follow these guidelines and you should be ok. If you still have high concerns, use a retailer with a decent return policy.

What components are you using in your system? It might be worth considering this to look at which cables are not long enough for everything that you need to power. Extensions are always a possibility though not ideal.

first of all thanks for the welcome. iv'e been a reader of SPCR for years but only now got to post something

well yes, maybe 'flooded' is a bit excessive

but still, the problem remains. i know 'regular' users that review products on 'regular' sites don't pay attention to the noise issue as much as the guys here do and that's exactly the point, it is an issue for me and that's why i'm reading this forum and not just amazon reviews.

i'm thinking maybe going for the Platinum 520w fan-less version although it's priced about 55$ higher than the X-560 or 30$ highet than the Platinum 660w or the X650KM3.correct me if i'm wrong but i think it will have enough Watts for my system.

anyhow, i'm asking here if there is any recommendation where to lean in this model-coil-whining-conundrum since all models will be adequate in terms of performance i believe.

about the cable length, i currently have extensions for the main 20+4 pin ATX cable, the MOLEX cable going to the top of the case to power the fans, and the front panel HD Audio cable. pretty annoying to find that out when i put everything in the first time...

As Steve linked to, there is a reason identified for why Seasonic PSUs give some users coil whine problems. This is not a fault with the PSU, it's just how it works when the motherboard is configured in a certain way. It is definitely not a universal noise or else you would find everyone who had one on here complaining about it. Both the Gold and Platinum PSUs are covered by this problem and there's no real point considering which might whine loudest: it's better just to set your motherboard up properly regardless of PSU.

If you'd rather try another make then Superflower/Kingwin might be worth a look if you haven't already.

well, this really does give me a different perspective on things. it does show that i should clear away from the p-660.

i'm a bit worried dropping the PSU to 460w... is it really just in my head?the x-650 has a hell of a lot more reviews which might be a better indicator.in addition, i can't seems to find a seller who states the 460 to be the second version. i'll call a few stores in the morning to find out exactly.

but none the less, if the BIOS configuration will solve it than why not go with the best cost effective of the bunch- the P-660?

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